Notes: Editions of the Official Handbook of the Marvel Universe have clarified that all three versions of the Destroyer — Keen Marlow, Brian Falsworth, and Roger Aubrey — were active during World War II, with Marlow allowing Falsworth and then Aubrey to simultaneously use the Destroyer identity so as to tactically confuse the Axis.
While the character is sometimes called "The Mighty Destroyer", the character's name is simply "The Destroyer", just as "The Invincible Iron Man" is "Iron Man", "Incredible Hulk" is "Hulk", etc.